Fix indentation for workflow debug step

Author: HaplessIdiot

.github/workflows/cmake-multi-platform.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Debug: prove workflow starts
-  run: echo "Workflow started successfully"
+        run: echo "Workflow started successfully"
       - name: Checkout repository
         uses: actions/checkout@v4